/**
 * @author 张慧华 <350863780@qq.com>
 * ----------------------------------------------------------
 * These functions use the same 'format' strings as the
 * java.text.SimpleDateFormat class, with minor exceptions.
 * The format string consists of the following abbreviations:
 *
 * Field        | Full Form          | Short Form
 * -------------+--------------------+-----------------------
 * Year         | yyyy (4 digits)    | yy (2 digits), y (2 or 4 digits)
 * Month        | MMM (name or abbr.)| MM (2 digits), M (1 or 2 digits)
 *              | NNN (abbr.)        |
 * Day of Month | dd (2 digits)      | d (1 or 2 digits)
 * Day of Week  | EE (name)          | E (abbr)
 * Hour (1-12)  | hh (2 digits)      | h (1 or 2 digits)
 * Hour (0-23)  | HH (2 digits)      | H (1 or 2 digits)
 * Hour (0-11)  | KK (2 digits)      | K (1 or 2 digits)
 * Hour (1-24)  | kk (2 digits)      | k (1 or 2 digits)
 * Minute       | mm (2 digits)      | m (1 or 2 digits)
 * Second       | ss (2 digits)      | s (1 or 2 digits)
 * AM/PM        | a                  |
 *
 * NOTE THE DIFFERENCE BETWEEN MM and mm! Month=MM, not mm!
 * Examples:
 *  "MMM d, y" matches: January 01, 2000
 *                      Dec 1, 1900
 *                      Nov 20, 00
 *  "M/d/yy"   matches: 01/20/00
 *                      9/2/00
 *  "MMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
 * ----------------------------------------------------------
 */
(function () {
	$.setRegional('utilDate', {
		MONTH_NAMES: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December', 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
		DAY_NAMES: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
	});

	function LZ(x) {
		return (x < 0 || x > 9 ? '' : '0') + x;
	}

	/**
	 * formatDate (date_object, format)
	 * Returns a date in the output format specified.
	 * The format string uses the same abbreviations as in parseDate()
	 * @param {Object} date
	 * @param {Object} format
	 */
	function formatDate(date, format) {
		let MONTH_NAMES = $.regional.utilDate.MONTH_NAMES;
		let DAY_NAMES = $.regional.utilDate.DAY_NAMES;

		format = format + '';
		let result = '';
		let i_format = 0;
		let c = '';
		let token = '';
		let y = date.getYear() + '';
		let M = date.getMonth() + 1;
		let d = date.getDate();
		let E = date.getDay();
		let H = date.getHours();
		let m = date.getMinutes();
		let s = date.getSeconds();
		let yyyy, yy, MMM, MM, dd, hh, h, mm, ss, ampm, HH, KK, K, kk, k;
		// Convert real date parts into formatted versions
		let value = {};
		if (y.length < 4) {
			y = '' + (y - 0 + 1900);
		}
		value['y'] = '' + y;
		value['yyyy'] = y;
		value['yy'] = y.substring(2, 4);
		value['M'] = M;
		value['MM'] = LZ(M);
		value['MMM'] = MONTH_NAMES[M - 1];
		value['NNN'] = MONTH_NAMES[M + 11];
		value['d'] = d;
		value['dd'] = LZ(d);
		value['E'] = DAY_NAMES[E + 7];
		value['EE'] = DAY_NAMES[E];
		value['H'] = H;
		value['HH'] = LZ(H);
		if (H == 0) {
			value['h'] = 12;
		} else if (H > 12) {
			value['h'] = H - 12;
		} else {
			value['h'] = H;
		}
		value['hh'] = LZ(value['h']);
		if (H > 11) {
			value['K'] = H - 12;
		} else {
			value['K'] = H;
		}
		value['k'] = H + 1;
		value['KK'] = LZ(value['K']);
		value['kk'] = LZ(value['k']);
		if (H > 11) {
			value['a'] = 'PM';
		} else {
			value['a'] = 'AM';
		}
		value['m'] = m;
		value['mm'] = LZ(m);
		value['s'] = s;
		value['ss'] = LZ(s);
		while (i_format < format.length) {
			c = format.charAt(i_format);
			token = '';
			while (format.charAt(i_format) == c && i_format < format.length) {
				token += format.charAt(i_format++);
			}
			if (value[token] != null) {
				result += value[token];
			} else {
				result += token;
			}
		}
		return result;
	}

	function _isInteger(val) {
		return new RegExp(/^\d+$/).test(val);
	}
	function _getInt(str, i, minlength, maxlength) {
		for (let x = maxlength; x >= minlength; x--) {
			let token = str.substring(i, i + x);
			if (token.length < minlength) {
				return null;
			}
			if (_isInteger(token)) {
				return token;
			}
		}
		return null;
	}

	/**
	 * parseDate( date_string , format_string )
	 *
	 * This function takes a date string and a format string. It matches
	 * If the date string matches the format string, it returns the date.
	 * If it does not match, it returns 0.
	 * @param {Object} val
	 * @param {Object} format
	 */
	function parseDate(val, format) {
		let MONTH_NAMES = $.regional.utilDate.MONTH_NAMES;
		let DAY_NAMES = $.regional.utilDate.DAY_NAMES;

		val = val + '';
		format = format + '';
		let i_val = 0;
		let i_format = 0;
		let c = '';
		let token = '';
		let token2 = '';
		let x, y;
		let now = new Date(1900, 0, 1);
		let year = now.getYear();
		let month = now.getMonth() + 1;
		let date = 1;
		let hh = now.getHours();
		let mm = now.getMinutes();
		let ss = now.getSeconds();
		let ampm = '';

		while (i_format < format.length) {
			// Get next token from format string
			c = format.charAt(i_format);
			token = '';
			while (format.charAt(i_format) == c && i_format < format.length) {
				token += format.charAt(i_format++);
			}
			// Extract contents of value based on format token
			if (token == 'yyyy' || token == 'yy' || token == 'y') {
				if (token == 'yyyy') {
					x = 4;
					y = 4;
				}
				if (token == 'yy') {
					x = 2;
					y = 2;
				}
				if (token == 'y') {
					x = 2;
					y = 4;
				}
				year = _getInt(val, i_val, x, y);
				if (year == null) {
					return 0;
				}
				i_val += year.length;
				if (year.length == 2) {
					if (year > 70) {
						year = 1900 + (year - 0);
					} else {
						year = 2000 + (year - 0);
					}
				}
			} else if (token == 'MMM' || token == 'NNN') {
				month = 0;
				for (let i = 0; i < MONTH_NAMES.length; i++) {
					let month_name = MONTH_NAMES[i];
					if (val.substring(i_val, i_val + month_name.length).toLowerCase() == month_name.toLowerCase()) {
						if (token == 'MMM' || (token == 'NNN' && i > 11)) {
							month = i + 1;
							if (month > 12) {
								month -= 12;
							}
							i_val += month_name.length;
							break;
						}
					}
				}
				if (month < 1 || month > 12) {
					return 0;
				}
			} else if (token == 'EE' || token == 'E') {
				for (let i = 0; i < DAY_NAMES.length; i++) {
					let day_name = DAY_NAMES[i];
					if (val.substring(i_val, i_val + day_name.length).toLowerCase() == day_name.toLowerCase()) {
						i_val += day_name.length;
						break;
					}
				}
			} else if (token == 'MM' || token == 'M') {
				month = _getInt(val, i_val, token.length, 2);
				if (month == null || month < 1 || month > 12) {
					return 0;
				}
				i_val += month.length;
			} else if (token == 'dd' || token == 'd') {
				date = _getInt(val, i_val, token.length, 2);
				if (date == null || date < 1 || date > 31) {
					return 0;
				}
				i_val += date.length;
			} else if (token == 'hh' || token == 'h') {
				hh = _getInt(val, i_val, token.length, 2);
				if (hh == null || hh < 1 || hh > 12) {
					return 0;
				}
				i_val += hh.length;
			} else if (token == 'HH' || token == 'H') {
				hh = _getInt(val, i_val, token.length, 2);
				if (hh == null || hh < 0 || hh > 23) {
					return 0;
				}
				i_val += hh.length;
			} else if (token == 'KK' || token == 'K') {
				hh = _getInt(val, i_val, token.length, 2);
				if (hh == null || hh < 0 || hh > 11) {
					return 0;
				}
				i_val += hh.length;
			} else if (token == 'kk' || token == 'k') {
				hh = _getInt(val, i_val, token.length, 2);
				if (hh == null || hh < 1 || hh > 24) {
					return 0;
				}
				i_val += hh.length;
				hh--;
			} else if (token == 'mm' || token == 'm') {
				mm = _getInt(val, i_val, token.length, 2);
				if (mm == null || mm < 0 || mm > 59) {
					return 0;
				}
				i_val += mm.length;
			} else if (token == 'ss' || token == 's') {
				ss = _getInt(val, i_val, token.length, 2);
				if (ss == null || ss < 0 || ss > 59) {
					return 0;
				}
				i_val += ss.length;
			} else if (token == 'a') {
				if (val.substring(i_val, i_val + 2).toLowerCase() == 'am') {
					ampm = 'AM';
				} else if (val.substring(i_val, i_val + 2).toLowerCase() == 'pm') {
					ampm = 'PM';
				} else {
					return 0;
				}
				i_val += 2;
			} else {
				if (val.substring(i_val, i_val + token.length) != token) {
					return 0;
				} else {
					i_val += token.length;
				}
			}
		}
		// If there are any trailing characters left in the value, it doesn't match
		if (i_val != val.length) {
			return 0;
		}
		// Is date valid for month?
		if (month == 2) {
			// Check for leap year
			if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
				// leap year
				if (date > 29) {
					return 0;
				}
			} else {
				if (date > 28) {
					return 0;
				}
			}
		}
		if (month == 4 || month == 6 || month == 9 || month == 11) {
			if (date > 30) {
				return 0;
			}
		}
		// Correct hours value
		if (hh < 12 && ampm == 'PM') {
			hh = hh - 0 + 12;
		} else if (hh > 11 && ampm == 'AM') {
			hh -= 12;
		}
		return new Date(year, month - 1, date, hh, mm, ss);
	}

	Date.prototype.formatDate = function (dateFmt) {
		return formatDate(this, dateFmt);
	};
	String.prototype.parseDate = function (dateFmt) {
		if (this.length < dateFmt.length) {
			dateFmt = dateFmt.slice(0, this.length);
		}
		return parseDate(this, dateFmt);
	};

	/**
	 * replaceTmEval("{1+2}-{2-1}")
	 */
	function replaceTmEval(data) {
		return data.replace(RegExp('({[A-Za-z0-9_+-]*})', 'g'), function ($1) {
			return eval('(' + $1.replace(/[{}]+/g, '') + ')');
		});
	}
	/**
	 * dateFmt:%y-%M-%d
	 * %y-%M-{%d+1}
	 * ex: new Date().formatDateTm('%y-%M-{%d-1}')
	 * new Date().formatDateTm('2012-1')
	 */
	Date.prototype.formatDateTm = function (dateFmt) {
		let y = this.getFullYear();
		let m = this.getMonth() + 1;
		let d = this.getDate();

		let sDate = dateFmt.replaceAll('%y', y).replaceAll('%M', m).replaceAll('%d', d);
		sDate = replaceTmEval(sDate);

		let _y = 1900,
			_m = 0,
			_d = 1;
		let aDate = sDate.split('-');

		if (aDate.length > 0) _y = aDate[0];
		if (aDate.length > 1) _m = aDate[1] - 1;
		if (aDate.length > 2) _d = aDate[2];

		return new Date(_y, _m, _d).formatDate('yyyy-MM-dd');
	};
})();
